# Pricing — typotype

> Free online keyboard tester, double click / double typing detector, mechanical switch health profiler, and Blitz RSVP speed typing trainer.

## Free Tier (Proprietary / Closed Source)
- **Price**: $0 / forever (Free to use)
- **Billing**: Free / No credit card required / No subscription
- **Limits**: Unlimited tests, unlimited keystrokes, unlimited diagnostic sessions
- **License**: Proprietary / Closed Source (Private repository; 100% free to use online)
- **Registration**: None required (Zero login, zero signup, zero paywalls)
- **Privacy**: 100% Client-side local execution (Zero keystrokes or telemetry recorded or transmitted)

## Included Features
- **Online Keyboard Matrix Tester**: Test all keys, modifiers, and N-Key Rollover (NKRO) across 60%, 65%, 75%, TKL, and Full-size ANSI/ISO layouts.
- **Keyboard Double Click & Double Typing Tester**: Automatic sub-millisecond contact bounce tracking to detect switch chatter.
- **Switch Debounce Calibration**: Test switch health across 5ms to 150ms firmware debounce thresholds.
- **Blitz RSVP Speed Mode**: Rapid Serial Visual Presentation single-word fixation stream with dynamic acceleration curves.
- **Targeted Hardware Drills**: Practice sessions isolating chattering switches, modifiers, all keys, F-row, or arrow navigation clusters.
- **Multi-Language Code Syntax Typing**: Practice syntax typing in JavaScript, TypeScript, Python, C++, and Rust.
- **Curated Literature Quotes**: Typing endurance tests across short, medium, long, and zen formats.
- **Mechanical Switch Audio Feedback**: Real-time synthesized physical switch acoustics (Thock, Clack, Clicky).
- **JSON Telemetry Export/Import**: Full switch health logs for warranty and RMA documentation.

## Paid / Enterprise Tiers
- **Pro Tier**: None ($0 — full feature access for all users)
- **Enterprise Tier**: None ($0 — free for personal, commercial, and educational use)

## Direct Application URLs
- **Web App**: [https://typotype.bychris.me](https://typotype.bychris.me)
- **⚡ Blitz RSVP Speed**: [https://typotype.bychris.me/blitz](https://typotype.bychris.me/blitz)
- **🎯 Hardware Drills**: [https://typotype.bychris.me/drill](https://typotype.bychris.me/drill)
- **💻 Code Syntax Typing**: [https://typotype.bychris.me/code](https://typotype.bychris.me/code)
- **📖 Curated Quotes**: [https://typotype.bychris.me/quote](https://typotype.bychris.me/quote)
- **Technical Reference**: [https://typotype.bychris.me/llms-full.txt](https://typotype.bychris.me/llms-full.txt)